Speed 21XZ-B Spec II "Ty 110%" .21 Engine w/T-2090SC Pipe by O.S. (Turbo Plug)

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Frederick, MD

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The O.S. Speed 21XZ-B Spec II "Ty 110%" .21 Engine was developed in collaboration with renowned factory driver Ty Tessmann. The Speed 21XZ-B Spec. II Ty 110% features improvements that paved the way for Ty to take first place in the Nitro Truggy division at the ROAR Fuel Off-Road National Championships, so you can be confident that it makes all the power you need! This model comes with a T-2090SC exhaust pipe and manifold that offers lots of tuning options. The Speed 21XZ-B Spec. II Ty 110% is being produced in limited quantities, so get yours before they are gone!


  • 7mm venturi insert that boosts power while reducing fuel consumption.
  • 4mm lower cooling head lowers overall center of gravity for improved handling.
  • The included T2090SC exhaust pipe with 90 mm manifold delivers consistent low idling and excellent mid-range power

This product was added to our catalog on October 6, 2017.